Ziwei Chen from China, is currently a EMDC (European Master of Distributed Computing) student of the Erasmus Mundus program. He is studying at the Universitat Politecnica de Catalunya (UPC), and will go to the Royal Institute of Technology (KTH) in Stockholm the next semester after the summer stay at CERN. Ziwei has a bachelor degree from the Tongji University of China in software engineering. Ziwei is interested in Cloud Computing and Large Scale distributed systems, and he is participating in a wireless mesh network testbed project called CONFINE in UPC, and enjoys this research a lot. As a summerstudent at CERN he is developing an algorithm working with configuration parameters to optimize the performance of FTS transfers.